22016255 has 4 divisors (see below), whose sum is σ = 26419512. Its totient is φ = 17613000.

The previous prime is 22016219. The next prime is 22016261. The reversal of 22016255 is 55261022.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 22016255 - 2²⁰ = 20967679 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22016255.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2201621 + ... + 2201630.

It is an arithmetic number, because the mean of its divisors is an integer number (6604878).

Almost surely, 2^22016255 is an apocalyptic number.

22016255 is a deficient number, since it is larger than the sum of its proper divisors (4403257).

22016255 is an equidigital number, since it uses as much as digits as its factorization.

22016255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4403256.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 22016255 is about 4692.1482286901. The cubic root of 22016255 is about 280.2729269083.

Adding to 22016255 its reverse (55261022), we get a palindrome (77277277).

The spelling of 22016255 in words is "twenty-two million, sixteen thousand, two hundred fifty-five".